SAN Connectivity to UCS

Hi Guys,
I am working on getting my SAN hooked up with UCS.Below is my confirguation .
There are 2 MDS switches. Each is connected to both SPs. Each HBA will be zoned to a port on each SP.
Two MDS 9500 SAN swtiches and cables are cross connected to the FI so that we have redendency.
NPIV is enabled on MDS switch. I am getting an error says intailizing and when I look at the speed Indeterminate SAN guy says they are 8.00Gbps.
Not sure what is wrong port are not comming up Green .Can anyone help me please.

Hi Srinivas,
What kind of fabric interconnect are you using? Are the fc uplinks connected to the expansion module on the fi?
Can you ssh into the fabric interconnect and run connect nxos and then show int for that interface? And do the same on the mds side.

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I'm looking for any configuration recommendations or best practices for configuring a VNX 5300 unified for direct connect to UCS Fabric Interconnects.
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Hi Manuel,
Two things:
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http://www.cisco.com/en/US/docs/switches/datacenter/mds9000/interoperability/matrix/Matrix8.html
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./Abhinav

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Hi MT,
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We have a 2 5108 chassis with 3 B200 blades each and 2 fabric interconnect 6248. This UCS connects to a hitachi storage array. The virtual machines configured use VMware.
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Is your Hitachi array connected directly to UCS, or via a SAN, and if yes, what kind of SAN (Brocade, Cisco) ?
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I have a Server-SAN-Storage setup as shown in the attachment/below. There are new Cisco UCS rack mount servers with VIC 1225 and Virtual servers on VMware Esxi hypevisor connected to a new Cisco Nexus 5548UP switch in IP+FCoE mode. The new 5548 switch then connects to an existing production SAN of Brocade 48000 Director SAN switch which connects to storage in production environment.
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See Figure 6-2 Converged Multi-hop FCoE Network Design Using FCoE NPV
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/operations/fcoe/513_n1_1/ops_fcoe/ops_fcoe_npv.html
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Hi David
Can you clarify your last posting a little bit.
I never installed direct attached NetApp Storage to the UCS as well.
One drawback i see is, if you have your NetApp System in active/standby mode connected to the FI, then for example all Servers connect through FI A to the NetApp System (NIC with VMKernel for all Server active on FI A). If the NetApp Link fails and switches over to standby link on Fabric B all the Traffic will go form Server to FI A to Uplink Switch to FI B and then to the NetApp System - because the Server is not aware that the NetApp System did a failover. So not all companies will have 10G Uplink Switches which will cause a bottleneck in that case.
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Thanks for a short replay.
Cheers
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Configuring Nexus 5k for SAN switching between UCS 6100s and NetApp storage

We are trying to get our UCS environment setup to do SAN boot to LUNs on our NetApp storage. We have a pair of Nexus 5Ks with the Enterprise / SAN license on them and the 6-port FC module installed. What needs to be done to configure the Nexus 5000 to operate as the SAN switch between the storage target and the UCS environment?

I'm still not seeing the LUN on the NetApp device from my service profile. Here are the outputs from the two
commands you referenced here along with a few other commands if they help at all.
Port fc2/1 is the conneciton to the UCS 6100 with FCID 0x640004 being the vHBA in my Server profile.
Port fc2/5 is the NetApp target. I have the LUN masked to the vHBA port name 20:00:00:25:b5:01:00:ff
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Robert,
have not tested without powerpath but i guess it will be the same.
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# rpm -qa EMCpower*
EMCpower.LINUX-5.3.2.00.00-029
# powermt check_registration
There are no license keys now registered.
# powermt display dev=all
PowerPath modules are not loaded.
Ensure that the modules are loaded and try again.
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I am trying to check VNXe 3200 Connectivity with SFP+ ( Cisco UCS 6249 - UCS 6248 Switches )
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will SFP and SFP+ connect to each other or that will cause some issues?
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http://www.cisco.com/c/en/us/products/collateral/servers-unified-computing/ucs-6200-series-fabric-interconnects/data_sheet_c78-675245.pdf
but please help me finding answers
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Hi Sami
https://community.emc.com/message/841141#841141
has the answer
EMC does not support Passive Twinaxial cables in an iSCSI or FCOE environment.
EMC only supports Active Twinaxial cables in an iSCSI or FCOE environment.
We currently support EMC, Brocade and Cisco cables.
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see http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/10GE_Tx_Matrix.html
https://community.emc.com/message/837419 might also be useful.
Walter.

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then issue
mount /dev/sda<1-4> /tmp-sda<1-4>
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all are mounted w/o an issue
I create a file
touch x
x is seen on all the mount points
the issue is when I alter the contents of x on say mount point 'tmp-sda1', save it, and open the x file from mount point 'tmp-sda3' the change is not there. We were told by the HP person that the driver we installed, that being for RHEL5, should make all the ports seen as one port and this should not happen.
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Thanks,
Steve
[root@rac01 tmp-sda1]# uname -rm
2.6.18-128.el5 x86_64
[root@rac01 tmp-sda1]# cd /dev
[root@rac01 dev]# ls sd*
sda sda1 sdb sdb1 sdc sdc1 sdd sdd1
[root@rac01 dev]# cd ~
[root@rac01 ~]# ls tmp*
tmp-sda1:
lost+found x x~
tmp-sdb1:
lost+found x x~
tmp-sdc1:
lost+found x x~
tmp-sdd1:
lost+found x x~
[root@rac01 ~]# df -h tmp-sda1
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 9.9G 151M 9.2G 2% /root/tmp-sda1

Ah! the joy of playing with multiple paths to your storage :-)
The reason you are not seeing your updates, is because you are not writing directly to your disks with linux, but doing things against the buffercache of linux. And linux considers the multiple paths to the storage as independed disks, so it doesn't know that when you are updating something in the first path, it should be the same for the other path's.
You need to setup a meta-device which does multipathing, and leave the direct disks alone.
Here's a guide how to set it up (it says dell, but configuring the device mapper is the same): http://www.dell.com/downloads/global/power/ps3q06-20060189-Michael.pdf

Good technical reason why data storage is limited to SAN in UC-UCS?

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Tenaro

Not sure this is a “good” reason but it is “a” reason and one I know was cited as a concern early on.
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I am very new to MDS switches (MDS9148 )-
DS-C9148D-8G16P-K9
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Hello Manas,
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I'm trying to connect an UCS to a SAN based on McData SAN switches. I configured the WWN pools and the vHBAs. The SAN Admin told me, NPV is on the port activated and NPIV is supported.
On the swicthes, my WWPNs are visible and the SAN Admin configured the zoning and the presentation already. If I rescan the the SAN on my ESX, I can't see any path or presentated LUNs at all. LIP reset with no success.
in the past, I had access to the whole environment and there was no special configuration to get this working. At this time I was working with Brocade/HP SAN switches. Today I'm only responsible for the UCS an the vSphere environment and the other admins have no experience with UCS.
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Kind Regards
Bastian

Hi,
many thanks for your help.
show npv flogi-table shows:
SERVER                                                                  EXTERNAL
INTERFACE VSAN FCID             PORT NAME               NODE NAME       INTERFAC
E
vfc791    1000 0x636215 20:00:00:25:b5:10:a1:00 20:00:00:25:b5:10:c1:00 fc2/1
vfc793    1000 0x636214 20:00:00:25:b5:10:a1:01 20:00:00:25:b5:10:c1:03 fc2/1
vfc795    1000 0x636217 20:00:00:25:b5:10:a1:02 20:00:00:25:b5:10:c1:01 fc2/1
vfc797    1000 0x636218 20:00:00:25:b5:10:a1:03 20:00:00:25:b5:10:c1:02 fc2/1
vfc805    1000 0x636216 20:00:00:25:b5:10:a1:04 20:00:00:25:b5:10:c1:04 fc2/1
UCSM Version is 2.1(3a)
adapter 1/1/1 # connect
adapter 1/1/1 (top):1# attach-fls
adapter 1/1/1 (fls):1# vnic
vnic ecpu type state   lif
8    1    fc   active 5
9    2    fc   active 6
adapter 1/1/1 (fls):2# login 8
lifid: 5
ID   PORTNAME                 NODENAME                 FID
adapter 1/1/1 (fls):3# lunmap 8
adapter 1/1/1 (fls):4# lunlist 8
% Command not found
adapter 1/1/1 (fls):5# login 9
lifid: 6
ID   PORTNAME                 NODENAME                 FID
adapter 1/1/1 (fls):6# lunmap 9
adapter 1/1/1 (fls):7#
No output at login doesn't sound good. Is this a fault of PLOGI didn't done correct? lunlist command not found is strange. Did this commend only works after successful login?
Kind Regards
Bastian

SAN Connectivity to UCS

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